recompose this grid

testing results for: sql
lab05
GNU-Fed-i64
sql/test/wlcr13.789 
wlc01 X O1.223 
wlc20 X O1.458 
wlc21 X O1.451 
wlc30 X O1.457 
wlc40 X O1.464 
wlc50 X O1.457 
wlr50 X X1.230 
wlc70 X O1.453 
wlr70 X X0.549 
wlc100 X O1.458 
wlr100 X X0.547 
70121 (candidate-exceptions)